
LOW-VOLTAGE SURGE PROTECTIVE DEVICES - PART 22: SURGE PROTECTIVE DEVICES CONNECTED TO TELECOMMUNICATIONS AND SIGNALLING NETWORKS - SELECTION AND APPLICATION PRINCIPLES
出版:South African Bureau of Standards

专家解读视频
基本信息
标准编号: SANS 61643-22 : 1ED 2005(R2010)
标准类别:Standard
出版单位:South African Bureau of Standards
标准页数:0
标准简介
Specifies the principles for the selection, operation, location and coordination of SPDs connected to telecommunication and signalling networks with nominal system voltages up to 1000 V r.m.s. a.c. and 1500 V d.c.
等同采用的国际标准
IEC 61643-22 : 2.0 - Identical